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Document:	DSV11-M Communications Option User Guide
Order Number:	EK-DSV1M-UG
Revision:	001
Pages:	40
Original Filename:

OCR Text

DSV11 M Commumcatlons Optlon

User Guide

Order Number EK-DSV1M-UG-001

dig:ita’l-equvipm,en/t corporafion

maynard, massachusetts

First Pri‘niihg,- A‘ptil 1988
The information in this document is subiect to change without notice and should
|
not be construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that may

appear in this document.

The software, if anv, described in this document is furnished under a license and may
be used or copied only in accordance with the terms of such license. No responsibility
is assumed for the use or reliability of software or equipment that is not supplied by
o
Digital Equipment Corporation or its affiliated companies.
-

The following are trademarks of Digital Equipment Corporation:
Bl Bus

Micro/RSTS

DECUS

DELNI

DELQA

DEQNA
DESTA

DIBOL

MASSBUS

ThinWire
ULTRIX-32
UNIBUS

Micro/RSX
MicroVAX II
PDP

DEC
DECmate
DECnet
DECwriter

RSX

MicroPDP-11

BASEWAY

P/OS

VAX

MicroVAX 3600

VAXELN

VAXcluster

~MicroVAX 3500
'.

Professional

Q22-bus

Q-bus

Rainbow

RSTS

VAXstation II

VAXstation II/GPX
VMS

Work Processor

dilgliltl
FCC NOTICE: The equipment described in this manual generates, uses and may

emit radio frequency energy. The equipment has been type tested and found to
complv with the limits for a Class A computing device pursuant to Subpart | of
Part 15 of FCC Rules, which are designed to provide reasonable protection against
such radio frequency interference when operated in a commercial environment,
Operation of this equipment in a residential area mav cause interference inu fvic h
case the user at his own expense may be rcquirvd Lo take mcanures bocoonve fh
interference.

Contents
Preface

1.1

Featuresofthe DSVI1 ... ...................

1.2

Typical DSV11 Configuratxon

Connectmg the DSV11 M

Introduction

2.1 Introductlon S
2.2

.................

How to Attach the Adapter and Extension Cable

Testing the lnstallatlon -

3.1 Preparatlon o

n aid

A e

|
e

o R

3.2 TestProcedure . ................. .. .o....

3.3

e e

Ifa Test Fails . . .. e

A Cab!es and Accessones
A.1

Adapter Cables.. ... .....

A.2 Extension Cables

... .. P

A.3 Loopback Test Connectors . .

................

B Gen.eral‘-Spe-clifi,.catiqns

B.1

Em'ironmehtal Conditions . « v v v v v e

B.2

Electrical Requirements

. ........ c

e e

tor

Contents.

Adapter Cable Pin Signals

C.1 Introduction ..... e
e
e
e ee
- C.2 RS-423 Adapter Cable: 37-Way Pins . ... .........
'C.3 RS-422 Adapter Cable: 37-Way Pins . . . ... .... .
C.4 V.35 AdapterCable: 34-Way Pins . . ... . .

20
22

C.5 V.24 Adapter Cable: 25-Way Pins . ......... e

C.6

V.24/RS-232-C Adapter Connector: 25-Way Pins

Figures

- 1-1

Typical DSV11 Configuration ... .. P

. .............

C-3 34-Way Square Connector (Male). . . ............ :

C-2 37-Way D-Type Connector (Male) .. ............ |

DSV11 Maximum Line Speeds e

Data Rate/Cable Length Relationships . . . . . ...
DSV11-M Environmental Limits. . . .

... ... ......

B-2

DSV11-M Electrical Requirements

C-1
C-2

RS-423Pinsand Signals. . ................ e
RS-422Pinsand Signals. . . ............... ...

.............

C-5

V. 24 to RS-232-C Pins and ngnals S

C-4 V.24 Pins and Signals .. ....... ST

e e eI

C-3 V.35 Pins and qignal:

... .

(5LI
)

'B-1

0D N)

1-1

25-Way D-Type Connector (Male and Pemale)

Tables
2-1

. ........e e

C-5

25-Way D-Type Connector (Male)

C-4

37-Way D-Type Connector (Male)

C-1

| Preface

ln’tfoduCtion

This guide tells you how to attach the cables to connect your DS\"ll-v
M to a modem, modem eliminator, or similar device. For simplicity,

this guide uses the term modem to refer to all such devices.

Before following the procedures in this guide, your DSV11-M board
must already be installed.

The DSV11-M

board

installed

DIGITAL field service personnel or by qualified self-maintenance

customers following the mstruchom in the DSVI11-M Commmmntzozzc
Option Inctallntzon Guzde |

Intended Audience B
Thisguide is for anvone mstalhng external cables to connect the
| DSVll M to a modem

Assomated Documents
- DSV11-M Communications Opfzon Incfnllahon Guide (EK-DSV1IM-IN) |
Tells vou how to mstah the DSV11-M board in a chro\ ANX
enclosure.

DSVII Comnz'um’cafionc Opfion Teclzm'cal'Dec’crz'p-tr'on’( EK DS\"H-TD)
Provides a full description of the DSVI11 device, detailing all
DSV11 features and fac1htxec

Preface

Structure of this Guide
The guide is divided into three chapters and three appendixes:

Chapter 1 — Introduces and describes the DSV11.
Chapter
2 Descr:bes how to connect the DSV11-M to a modem.
Chapter 3 — Provides tests to check the cable installation.
Appendix A — Lists DSV11 cables and accessories,
Appendix B — Provides the general specifications of the DS\ 11.
-~ Appendix C — lllustrates and descnbes the adapter cable pin
51gnals

1
- ln-trodu ction
This chapter introduces you to the major features of the DQVH and
shows a typlcal DSVI1 configuration.

1.1 Features of the DSV11
" The

DSV11

1s a two- channel hléh speed SV nchronou: communications o
'thon

for use on MicroVAX

1II and BA200 series Q bus backpanes

are two variants of the DSV11:
e

here

DSV 11-M for MlcroVAX enclosures |

e DSV11-S for BA200 series enclosures
The maijor features of the DSVll are descubed m the remamdex of
this section.
)
NOTE

)

The DSV11-M will not operate unless }ou mstall the appropnate
| deuce driver kit on your system:
.

For version V4.7 of VMS install the VAX DS\ 11 Dence Drn er

- kit
¢

For versions of VMS later than V4
7, mstall the VA)\ V\ AN
Device Drivers kit
|

The DSV11 supports the followmg svnchronous commumcanons
protocols:
|

e« DDCMP
e HDLC/SDLC
e

BISYNC

The maximum line speed available depends upon the protocn
selected and the number of lines you wish to use. Note thal vou

canruna dxfferent protocol on each of the lines. Table 1-1 th\\ s the

Introduction

maximum line speeds av axlable For the specxfic line speeds suppoxted
by your system, refer to your networking software documentation.
Ta,;‘ble,.1-1

DSVH Maxumum Llne Speeds
1 Line

-2 Lmes

| ‘Pmtoc.ol.\ R (bits’s)

.~ DDCMP
HDLC/SDLC
-~
BISYNC

(bits's)

S 25%6K

64K

25K
19.2K

64K
96K

NOTE

Maximum line speeds can be hmxted by the length of cable between

‘the DSV11 and the modem. Chapter 2 prov ides details.

- To connect your svstem to the outside world, the

DS\/11 allow: \ou |

to use any of the following svnchronous mterfaces e

RS-423

RS-422

e RS-232/V.24

¢ V.35
. The D5V11 also .offers these features: |
|

DMA data transfer

Full and half duplex operanon

Full modem control

NRZ and NRZI data encodmg

If you want to know more about the DS\/11 the DQKIZ

Communications Option Technical Description (EK- DSV11-TD) comamq
detailed information on DSV11 features and facilities. The DSVII
Communications Option Technical Description is available from DIGITAL
as a separately orderable item.

Introductinn 3

1.2 Typical DSV11 Configuration

Figure 1-1 illustrates a tyvpical| DSV11 conflfiuratlon showing the

general lavout of hardware and cables in the link between your
system and the out51de world.

| CPU Cabinet
DSV11
Board
|

|
|

Adapter

Cable

> Network

N
\

Extension

Cable
RE5' 99

Figure 1-1

Typical DSV11 Configuration

Connecting the DSV11-M
| This chaP't_er desac"ribes how to C'o»nnfie‘ct the DSV11-M toa modem.
This involves attaching the adapter and extension cables.

2.1 Introduction
-

After installation
of the DSV11-M board, a distribution panel
containing two 50-way connectors
is available at the back of the
- MicroVAX enclosure. You use these connectors to attach the cables
connecting vour DSV11-M to a modem (how to do this is shown in

Section 2.2).

The 50-way connectors can provide signals for any of the DSV11-M
-supported interfaces. To make the SU-way output suitable for a
|

specific interface, you have to use an interface-specific adapter cable.

rom the range of signals
provided by the 50-wav connector, the
adapter cable selects only those required by the interface Frotocol. |
For example, you must use a V.35 adapter cable to be able to send
data using
the V.35 interface.
o
|

At one end. an adapter cable has a 50-way plug which attaches to

the DSV11-M dist_ri’gution panel. At the modem end, the adapter

cable
has the interface standard connector. So, for example, at
- the modem end of the V.24 adapter cable is the standard V.24
25-way connector. Section A.1 lists the adapter cables and their tvpe

C illustrates and lists the signals associated
numbers and Appendix
of each ad.a’pt'err‘ Cable! R
xxfitlm the modem end

Adapter cables are only 0.6 m (24 inches) long. You need an
additional length of cable to complete the connection to a modem.
Extension cables are used to connect the modem end of the adapter

cable to the modem itself. Section A.2 lists the extension cables and
their type numbers.
L
|

Crnnacting the PSVI1

When you Flan the length of cable between the DSV11-M distribution
panel and the modem, please note that the maximum data throughput
- you can achieve reduces with distance. Table 2-1 lists maximum cable
engths for a number of data rates using the DSV11-M supported
interfaces. Use this table to check that your cable run is not too long
|
for the data rate you require.

The CCITT V.35 recommendation specifies a maximum line speed
of 48K bits/s. However, with the DSV11-M you can use the V.35
interface at higher speeds, as shown in Table 2-1.

Table 2-1

Data Rate/Cable Length Relationships

S Data-:Rate (bits’s) -

‘Line‘-‘ Pro.t-o;.:'ol“

V24/RS-232.C
RS-423

- RS-422
|

_
v3s

Upto20K
Below1K

15m (50 ft)
1200 m (3900 f)

64K

130 m (400 ft)

20K
48K

'Maxi‘mum_ Cabl“e.Léng-th

100K

128K

800 m (2600 ftr

Below 90K

400m (1300 f)
160 m (500

85m@70f)

1200 m (3900 ft)

256K
©400m (1300 f)
e0m@00f)
.
236K

Séctién 2.2 describes the s‘tep‘ss i-n‘x'o,;lxied»in ;attaching”the adapter and

extension cables to connect your DSV11-M to the modem.

.\ | //.‘ a )

the DSV11-M
Cannecting

2.2 How to Attach the Adapter and Extension
Cables

Step 1: Connect the Adapter Cable to the 50-Way Connector

REE2M

Connecting the DSV11 M

Step 2: Connectathe-;Ad};apter»Cabl_e to the Extension Cable

Adapter cable
.

Extension cable
€3320

‘Cannecting rhé‘DSVH M

Step 3: Connéct the Extension Cable to the Modem

)

\\~‘e// o

. ’F"!.. S

Tighten screws

age;¢

Cnrnnectinn the ,nsw-fi 1.m

Step 4: Check All Connections Are Complete

“Modem

Network

TN\
| \ [+ —~BR0 =5
.

)

Extension
Cable

g Adapter

Cabe

REEZT2

10 Connecting the DSVI1 M

Step 5: Test the Installation

Now that your DSV11-M is connected to the modem, please follow

the instructions in Chapter 3. Chapter 3 tells vou how to use
the Network Control Program (NCP) to check that the cables are
connected correctly and that your DSV11-M system
is operational.

. Tes” ”9 the In s_tal lation
Thls ch
fpter descrlbes basxc checks to ensure that the cab]es betu een
the DSV 11-M dlstnbutlon panel and the modem ha\e been attached' -

coxrectl}

3.1 Prepa-ra-tiOn "
Before running these tests:

Install either the DSV11 Demce Driver kit (for VMS V4.7) or the
- VMS WAN Device Drivers kit (for xersxons of VMS later than
V4.7) on your system.
o
|

2. Install, configure, and start the netwoergsoftware (for examp
VAX P.S5.1.) on your system.

3. Log in to the SYSTEM account
If vou are gomg to use eithera DECnet or an X. 23 netu oxk also
start NCP by entering t\e tolloumg command
$ RUN SYSSSYSTEM:NCP
NCP>

3.2 Test Procedure

This sectlon details three basxc test: to check that the cablmg bem een
~

your DSV11-M distribution panel and the modem is sound. Use the
test appropriate to the communications p:otocolyour network uses:

DDCMP (Test 1)

HDLC/SDLC (Test 2)

BISYNC (Test 3).

Tests 1 and 2 use NCP to gerfmm lnopbacL tests ona DT Cnet cirenit
or on an X.25 line. Test 3 asks you to perform one of vour usual

tasks using the remote application. Successful completlon of a test

Testing the Instaliation

indicates that the basic cabling between the DSV11-M dlstnbuhon
panel and the modem is sound. The installation is then complete
and your DSV11-M
is read\f for use.

NOTE

The procedures described in this chapter do not exhaustwelv test
the operation of the cables and the modem. To test fully the
operatlon of the cables (including the modem signal and clock
circuits) you must use the MDM Service Mode diagnostic, which
has to be purchased separately. Details of MDM Service Mode
can be found in the DSV11 COMMUNICATIONS OPTION TECHNICAL
DESCRIPTION. If you have a DIGITAL maintenance contract for
your system, DIGITAL Field Service personnelwill test any cables

supplied by DIGITAL.

Test 1: LOOP C!RCUIT

Run a DECnet circuit loopback test by followmg theae steps

Enter these NCP commands:
NCP> SET LINE DSV-c-n STATE ON
NCP> SET CIRCUIT DSV-c-n STATE ON
NCP>

LOOP

CIRCUIT DSV-c-n COUNT

~where ¢ is the DSVllM control]er number and 118 the number
of one of the circuits running over your DSV11- M.

(

This test loops back 10 messages, each made up of mixed binary
digits.
|
|

Check
the NCP message

that is returned. This message indicates

‘whether the test comp eted successfull\, or not

see Sectlon 3.3.

Test 2: LOOP LINE

If the test fails

oS |

Run an X.25 line loopback test by follomng these steps:
1.

Switch vour modem into local loop mode or attach a lnopback
connector to the modem end of the extension cable.

SRR >

Testina the Instatiatinn

Enter these NCP commands?
NCP>

SET LINE

NCP> SET
NCP>

DSV-c-n STATE

LINE DSV-c-n

LOOP LINE

DSV-c-n

STATE
COUNT

OFF

SERVICE CONTROLLER

NOR”.AL

where ¢ is the DSV11- M controller number and n is the line
number.

‘This test loops back 10 messages each made up of mrxed bman |

-~ digits.

3. Check the NCP messa%e that is returned This message indicates
whether the test com

see Sectlon 3.3.

eted successfullv or not.

If the test faxls

Test 3: Perform One of Your Usual Tasks

Test a system runnmf the BISYNC protocol by trying to perform
one of your usual tasks using the remote application. For example,
trv to execute a single command If this command does not execute

normally, see Sectlon 3.3.

3.3 If a Test Fa:ls

To check that the failure is not temporary please try runnmg the test
several times.

If the test still fails, check all of the cable connectlons between vour

DSV11-M d1<tr1butlon panel and the modem. If the connections
seem good, check that your DSV11-M board is operational (see the

DSVII-M Communications Option Installation Guide for detalls)

If the board is operational, and the test still fails, refer to the prob em
~solving information supplied with your networking software.

If the problem persrst please contact your local DIGITAL offlce. "

Cables and AcceSSories ”
This appendxx contains tab]es xstmg the cables and loopback

| ;connectors used with the DSV11.

A.1 Adapter Cables
- Type

Descnption

)

BC19B-02

DSV11 to RS-422

BS19D-02
P

DSV11 to V.24 mcludmg the 12 27391 00 V.24 to R5-232-C
adapter
,.

BC19E-02

DSV11 to RS-423

BC19F-02

DSVIlto V.35

Cahieg anAd Arcescories

A.2 Extension Cables E
| | Description

Typé
BC55D-XX

RS-422

BC22F-YY

V.24

BC55D-XX

RS-423

BCI9L-XX

V.35

XX represents one of:
25

7.6 m (25 ft) long

15.2m (50 ft) long

22.9 mx (75 ft) long

m (100 ft) long
30.5

YY represents one of:
10

3.1m (10 ft) long

7.6m (25 ft) long

'35

10.7 m (35 ft) long

15.2 m (50 ft) long

Cahles and Accessorias

A.3 Loopback Test Connectors
| Description

| QD'%‘SD fi" Mmoie
Universal SO-way
Synchronous _1ine loopback (RS-232-C) |
Synchronous line loopback (RS-423)

Synchronous line loopback (‘RS.422)_ )
H3250

Synchronous
line loopback (V.35) —5k

Vg -b7
79 B\

A G -0pe

B
G enefa |4 sp ecificatio ns

This appendxx contains tables hstmg the env1ronmental and electrxcal

characteristics of the DSV11-M.

B. 1

Envnronmental Condmons

Only use or store the DSV11-M
in an environment which corresponds
to the hmlts defmed in Table B 1.
|

‘Table B-1 DSV“fi-Menvironmema.v Limits
Envuonment

Storage Temperamre

anmum’

Operating Temperature
Relative Humidity (NonCondencmg

Maximum

40 C (- 40°F)

- 66°C (151¥CF)

5°C (41°F)
|

10%

60°C (140°F)
~

95%

NOTE

DIGITAL normall\ defines the 0perat1ng temperature range for a
system as 5°C to 50°C (41°F to 122°F); the 10°C difference quoted
above allows for the temperature gradient inside the system box.

General Sracifications

B.2 Electrical Requirements

Table B-2

DSV11-M Electrical Requirements

DC Voltage

Varja‘hcg,} o

Current

Power Consumption

45V

4+ or-5%

65A

325 W ('ma‘ximum) |

+12v.

0875A

10.5 V\ (maximum)

+or-5%

Electrical loadings on the Q-bus are:

ACload: 3.9

e DCload: 1.0

‘

.
¥ 3.
1

(::

Adapter Cable Pln Slgnals
This appendlx 1llustrates and hsts the 51gnals associated mth the
modem end of the adapter cables.

C. 1 Introductlon
Each section in this ap sendix descrlbes one adapter cable. The

modem enddpm-out is 1llustrated and a follomng table lists the pin
numbers and their associated sxgnal_

These are the pin-outs descnbed
o

.RS 423 (Sectxon C.2)

RS-422 (Sectxon C.3)

‘®

V.35 (Section C.4)

e V.24 (Section C. 5)
e

V.24 to RS 232 C adapter connector (Sectxon C 6)

NOTE

- Throughout the tables, (A) or (B) after a 51gnal name refers to wire
A or B of a twisted pair.

Adémm Cable Pin Sianals

' C.2 RS-423 Adapter Cable: 37-Way Pins
PINT

&ocoooooooooaoooo

00000000000000000_‘

PIN20

Figure C-1 37-Way _DoTy'pe Connecto'r (Male) |

Table C-1
Pin

RS-423
Pins and Signals

SngnalName

DTEGROUND

RXDATA(A)

DCEGROUND

TXCLOCK(B)

RXDATA(B)

DTE GROUND

CIS(A)

LOCALLOOP

12
13
14

DIR
27
DCD@A)
29
REMOTELOOP
30

TESTINDICATE

"TXCLOCK(A)

10
1

Signal N'a"m:'e_ SR

~ RXCLOCK(A)
~

Pm B

TXDATA

RIS

9
9

Adnm'r_:k Cahf:: Pin .Qi,qnn,!,q_f' 2-1‘

DSR(A)

SPEED

CLOCK

DTEGROUND

RXCLOCK (B)

CTS(B)
DSR(B)
|
DTEGROUND

DCD®

DTE GROUND

Adapter Cahin Pin Siqnals

C.3 RS-422 Adapter Cable: 37-Way
P ns
PIN20

PIN1

]

;

PIN 37 ——

5 0000000000000000G
00000000000000000 O-

\1 |

3E4666

Figure C-2 37-Way D-Type Connector (Male)

'Adap'ter‘_(‘i,ahvlo’ Plin Signé's‘ 23

Table C-2 RS-422 Pins and Signals
Pin

S'ivg'nal' Name

TX DATA (A)

'Slg'nla'l' Name

TEST INDICATE

TX CLOCK (A)
RX DATA (A)

RX CLOCK (A)

DCE GROUND

TX DATA (B)

CTS (A)

LOCAL LOOP

DSR (A)

TX CLOCK
(B)
- RX DATA (B)

"RTS(B)
RX CLOCK (B)

DTR (A)

~ CTS (B)

DCD (A)

- DSR (B)
DT(B)
R

REMOTE LOOP
‘Rl

SPEED

CLOCK (A)

' DCD
(B)
CLOCK (B)
~ DTE GROUND

- 24 Adér‘f"r Cah!e Pvin Signais

® 066 666 00 ©

® 000006

0 00 0 6

006 0

( Oooo®O0®00 |

C.4 V.35 AdépterCable: | 34_-Wa-y Pins

3ge6ES

Figure C-3 34-Way Square Confin.ect‘or (Male)

Adapter Cahle Pin Signals

V.35 Pins and Signals

| Signal‘Name |

Table C-3

Mg
M
T

Pinn

TX CLOCK (B)

'DTE GROUND

RTS

CTS

RX DATA
(A)
-~

.‘Signal Namé

TX DATA (B)

RXDATA(B)

CLOCK (A)

DSR (A)
V
,
RX CLOCK (A)
DCDI@A)
W
CLOCK (B)
DTR
X
RXCLOCK (B)
RI
Y
TXCLOCK (A)

TX DATA (A)

25 o

Adanter Cable Pin Signals

C.5 V.24 Ada'pter Cable: 25—-Way‘Pin'S-_‘ -

PIN
1

)

0000000000

000000000000

PIN 14

PIN25

PIN13
284673

Figure C-4 25-Way D-Type Connector (Male)

Adapter Cable Pin Signals 27

Signal Name

TX DATA

® N

~ Pin

U e W N

Table C-4 V.24 Pins and Signals

LOCAL LOOP

RTS

DTR

DSR

RX CLOCK

RX DATA

CTS

o Signal N:a‘mev |

REMOTE LOOP
2

DTE GROUND

' SPEED SELECT

DCD

- CLOCK

TXCLOCK

TEST INDICATE

Adapter Gable Pin S‘iqnals

C.6 V. 24/HS 232-C Adapter Connector 25.Way
Pms

S PINA

PlNT%/

PIN1

19 o &
Q Q .

PIN 14

19
Q
Q

1 © o

1 &

Q o

va 3

o
&

o g

{2 o
PIN 25

PIN 13.

(FEMALE)'-

Sf}* '
-~

PIN 13

PIN 25
-

(MALE)
| :

At 4664

;

2?5-~Way D-Type Connector (Male and Female)

(‘

Fi‘gqre C-5

Ardapter Cahle Pin Signals

Table C-?S. V.24 to RS-232-C Pins and Signals
Pin

)

Number
(Male)

2
3

,
Signal Name

TXDATA
RXDATA

Pin Number
(Female)

2
3

RTS

DSR

~ GROUND

DCD

TX CLOCK

RX CLOCK

DTR

CLOCK

TEST INDICATE

Pins 18, 21, and 23 are not connected.